如何在 unity fps 游戏中创建 fps 相机 3d

Question

我想创建 fps 游戏，玩家可以在其中移动 w a s d 并使用空格键跳跃，但也可以将鼠标放在游戏中心，我可以在移动相机时旋转相机还需要我检查冻结旋转 *所有游戏都是3d

使用UnityEngine； 使用 System.Collections；

[RequireComponent(typeof(Rigidbody))]

public class PlayerController : MonoBehaviour
{

    public float speed = 1.5f;

    public Transform head;

    public float sensitivity = 5f; 
    public float headMinY = -40f; 
    public float headMaxY = 40f;

    public KeyCode jumpButton = KeyCode.Space; 
    public float jumpForce = 10; 
    public float jumpDistance = 1.2f; 

    private Vector3 direction;
    private float h, v;
    private int layerMask;
    private Rigidbody body;
    private float rotationY;

    void Start()
    {
        body = GetComponent<Rigidbody>();
        body.freezeRotation = true;
        layerMask = 1 << gameObject.layer | 1 << 2;
        layerMask = ~layerMask;
    }

    void FixedUpdate()
    {
        body.AddForce(direction * speed, ForceMode.VelocityChange);

        // Ограничение скорости, иначе объект будет постоянно ускоряться
        if (Mathf.Abs(body.velocity.x) > speed)
        {
            body.velocity = new Vector3(Mathf.Sign(body.velocity.x) * speed, body.velocity.y, body.velocity.z);
        }
        if (Mathf.Abs(body.velocity.z) > speed)
        {
            body.velocity = new Vector3(body.velocity.x, body.velocity.y, Mathf.Sign(body.velocity.z) * speed);
        }
    }

    bool GetJump() 
    {
        RaycastHit hit;
        Ray ray = new Ray(transform.position, Vector3.down);
        if (Physics.Raycast(ray, out hit, jumpDistance, layerMask))
        {
            return true;
        }

        return false;
    }

    void Update()
    {
        h = Input.GetAxis("Horizontal");
        v = Input.GetAxis("Vertical");

    
        float rotationX = head.localEulerAngles.y + Input.GetAxis("Mouse X") * sensitivity;
        rotationY += Input.GetAxis("Mouse Y") * sensitivity;
        rotationY = Mathf.Clamp(rotationY, headMinY, headMaxY);
        head.localEulerAngles = new Vector3(-rotationY, rotationX, 0);

    
        direction = new Vector3(h, 0, v);
        direction = head.TransformDirection(direction);
        direction = new Vector3(direction.x, 0, direction.z);

        if (Input.GetKeyDown(jumpButton) && GetJump())
        {
            body.velocity = new Vector2(0, jumpForce);
        }
    }

    void OnDrawGizmosSelected()

    {
        Gizmos.color = Color.red;
        Gizmos.DrawRay(transform.position, Vector3.down * jumpDistance);
    }
}

Answer 1

您的代码似乎大部分是正确的。但是，您需要将

fixUpdate

替换为

update

以便自更新以来更流畅的输入处理，因为它每帧调用一次并执行。 其次，您需要将 GetJump() 方法中的

body.velocity

赋值更改为

body.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);

看看是否可行